Ultrasound assisted regioselective sulfonation of aromatic compounds with sulfuric acid

A simple and convenient methodology for selective sulfonation of aromatic compounds using sulfuric acid under sonication is described. The present methodology shows a considerable enhancement in the reaction rate along with improved selectivity compared with the reactions performed under silent cond...

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Veröffentlicht in:	Ultrasonics sonochemistry 2009-03, Vol.16 (3), p.308-311
Hauptverfasser:	Qureshi, Ziyauddin S., Deshmukh, Krishna M., Jagtap, Sachin R., Nandurkar, Nitin S., Bhanage, Bhalchandra M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aromatic hydrocarbon Chemistry Exact sciences and technology General and physical chemistry Hydrocarbons, Aromatic - chemistry Molecular Structure Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Sonication Stereoisomerism Sulfonation Sulfones - chemical synthesis Sulfones - chemistry Sulfuric acid Sulfuric Acids - chemistry Ultrasonic chemistry Ultrasound
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Beschreibung
Zusammenfassung:	A simple and convenient methodology for selective sulfonation of aromatic compounds using sulfuric acid under sonication is described. The present methodology shows a considerable enhancement in the reaction rate along with improved selectivity compared with the reactions performed under silent conditions. The effect of various parameters such as agitation speed, sulfuric acid concentration, and temperature on reaction system have been investigated and are explained on the basis of ultrasonically generated cavitational effects.
ISSN:	1350-4177 1873-2828
DOI:	10.1016/j.ultsonch.2008.10.001